From: Daniel Arndt <arndtd@ornl.gov>
Date: Fri, 5 Jun 2020 02:40:46 +0000 (-0400)
Subject: Avoid use-after-scope when calling MappinQCache::initialize multiply
X-Git-Tag: v9.3.0-rc1~1486^2~1
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7729f1e0a37a8d8ce3156d08f6f849c463b38571;p=dealii.git

Avoid use-after-scope when calling MappinQCache::initialize multiply
---

diff --git a/source/fe/mapping_q_cache.cc b/source/fe/mapping_q_cache.cc
index 8af4eb2b07..96271efab4 100644
--- a/source/fe/mapping_q_cache.cc
+++ b/source/fe/mapping_q_cache.cc
@@ -94,6 +94,7 @@ MappingQCache<dim, spacedim>::initialize(
     const typename Triangulation<dim, spacedim>::cell_iterator &)>
     &compute_points_on_cell)
 {
+  clear_signal.disconnect();
   clear_signal = triangulation.signals.any_change.connect(
     [&]() -> void { this->support_point_cache.reset(); });